For better or worse, as of now, this is our True End. In the Bad End, Ange is told bluntly and in Red by almost everyone what is what happened in Rokkenjima, but Ange was unable to accept that truth. She decided that the world and the Red Truth were wrong. She decided to create her own Red Truth with her blood, and thus, she committed suicide.

As for the True End, I think you'll have to read the full story or read more spoilers to grasp the whole thing. How can I put it? As a story, is not really bad, in fact, it's a really heart-warming story about a broken man, who's lost everything and who's trying to piece himself together again, finally being able to succeed at the end. I swear, the final exchange of words between him and Beato (whether it occurred or not, or however it may have occurred if it did occur) was seriously too nice. I was honestly moved.

Of course, as mystery is related, I'll put it bluntly, Umineko is no mystery novel at all. I don't know if R07 thinks this count as one, but in my opinion, no matter how you may look at this work, it simply doesn't fall into the category. Sure, there were several puzzle, and an apparent mystery, but in the end, for the overall story, the mystery mattered very little. In fact, as far as the reader is concerned, finding out what actually happened in Rokkenjima is simply not possible. We can, indeed, find out who Beato is and her plan, but, in the end, whatever her plan may have been, the incident in Rokkenjima is not Beato's fault. In fact, she didn't even plan things turning out this way.

Spoiler:

Ange hears the barrage of red either way, no matter Good or Bad Ending. What matters is how she deals with it. After the final struggle against Bern is over, if you choose "MAGIC," then it goes to a good end and she deals with her problems fine (I presume; at least, there was no suicide in this end and it was all happy music and happy text). However, if you choose "TRICK," then she murders Kawabata and Amakusa while on the boat and either shoots herself or jumps into the propellers, not sure which.

The Magic End unlocks the Tea Party and the ???, the Trick End does not.